It looks like the bug never saw malicious use in the wild, because the developers who noticed it alerted Apple and kept the bug secret while it was fixed. Like other clickjacking attacks, the most likely use is to get a user to inadvertently click an ad. Although, an even more dangerous example is shown to harvest passwords.

If the StreetView and Maps additions in the latest iPhone software wasn’t enough to get you to download the free update, let this attack be reason enough.